The One3 Battery pack has 3 warming modes giving up to 6 hours of gentle, constant warmth for your feet. The case is robust and hardwearing. The battery has only one button to turn it on and select the warming mode. Included is two batteries and one charger. This battery is compatible with all the insoles in the Foot Warming System range.
- Three heat levels: low, medium and high
- Powerful lithium ion battery
- Compact for use with any footwear
- Easy integrated clip system
- 2 year internet warranty with registration
- Provides ideal thermal comfort for all outdoor activities
- Developed with biomechanical foot specialists